The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Oxygen Vacancy Generation and Stabilization in CeO2–x by Cu Introduction with Improved CO2 Photocatalytic Reduction Activity
Abstract
Introducing O vacancies into the lattice of a semiconductor photocatalyst can alter its intrinsic electronic properties and band gap, thus enhancing the visible light absorption, promoting the separation/transfer of photogenerated charge carriers, and resultantly elevating the photocatalytic activity of oxide semiconductors. Moreover, O vacancies can help adsorb and activate CO 2 on photocatalyst surfaces, which, however, are prone to being filled by O atoms during the photoreduction reaction. In this work, Cu was introduced to increase the O vacancy concentration in CeO 2– x and promote the photocatalytic activity of CeO 2– x . The sample Cu/CeO 2– x -0.1 showed the highest photocatalytic activity with a CO yield of 8.25 μmol g –1 under 5 h irradiation, which is ∼26 times that on CeO 2– x . According to the analysis of Raman and X-ray photoelectron spectroscopy (XPS) spectra, it has been evidenced that Cu introduction benefits the chemical stabilization of O vacancies in CeO 2– x during photocatalytic CO 2 reduction, which is responsible for the improved and sustained photocatalytic activity.
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Citations
Cites
On the Synergetic Catalytic Effect in Heterogeneous Nanocomposite Catalysts
Shi, J. (2013) · Chemical Reviews · doi:10.1021/cr3002752 · Cited by 652
Self-citation
Cited by
Oxygen vacancies in metal oxides: recent progress towards advanced catalyst design
Zhuang, G., Chen, Y., Zhuang, Z., Yu, Y., & Yu, J. (2020) · Science China Materials · doi:10.1007/s40843-020-1305-6 · Cited by 499
Atomic‐Level Reactive Sites for Semiconductor‐Based Photocatalytic CO2 Reduction
Zhang, Y., Xia, B., Ran, J., Davey, K., & Qiao, S. Z. (2020) · Advanced Energy Materials · doi:10.1002/aenm.201903879 · Cited by 423
Zhang, S., Zhang, Z., Si, Y., Li, B., Deng, F., Yang, L., Liu, X., Dai, W., & Luo, S. (2021) · ACS Nano · doi:10.1021/acsnano.1c05834 · Cited by 394
Impacts of the Catalyst Structures on CO2 Activation on Catalyst Surfaces
Etim, U. J., Zhang, C., & Zhong, Z. (2021) · Nanomaterials · doi:10.3390/nano11123265 · Cited by 175
Remediation of water from per-/poly-fluoroalkyl substances (PFAS)–Challenges and perspectives
Garg, S., Wang, J., Kumar, P., Mishra, V., Arafat, H., Sharma, R. S., & Dumée, L. F. (2021) · Journal of Environmental Chemical Engineering · doi:10.1016/j.jece.2021.105784 · Cited by 139
Metadata
- Authors
- Wang, M., Shen, M., Jin, X., Tian, J., Li, M., Zhou, Y., Zhang, L., Li, Y., & Shi, J.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-04-12
- Volume
- 9
- Issue
- 5
- Pages
- 4573-4581
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2937295527
- Cited by
- 586
- References
- 1
- FWCI
- 12.06
- Type
- journal article
- Language
- en
- Open access
- closed
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